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Teradyne, Inc.

A maker of automated test equipment and collaborative robots, Teradyne builds the machines that check whether semiconductors, circuit boards, and other electronics work before they ship. Its testers—like the FLEX Test Platform and UltraFLEXplus—are used by chipmakers worldwide, while its robotics arm makes collaborative and autonomous robots for warehouses and factories. It runs three segments: Semiconductor Test, Robotics, and Product Test, formed in 2025 by combining its board test, defense/aerospace, and wireless test businesses.